Beater mill



w. ,.1. KUNTZ Jan. 7, 1930.

BEATER MILL 2 Sheets-Sheet Filed April Y INVENTOR Md KU/I/TZ ATTORNEY Jan. 7, 1930. w. .1. KuNTz 1,742,511

BEATER MILL Filed April 18. 1928 2 Sheets-Sheet 2 ATTORNEY Patented Jan. 7, 1930r A `,UN'rrlaD.E STATES lwrala'r OFFICE 4 aAoBxUNTZ, or Yonai, PENrrSYLvAN-#A Application led April 18,

This invention relates to a beater mill.

An object of the invention is the provision of a beater mill having an automatic throwout, through which are adapted to be ejected the heavier particles while the lines from the particles are ejected through'a separate path.

Another object of the invention is" the provision of a beater mill in which a revolving beater is adapted to forcibly act upon heavier particles from a hydrating plant for lime, and in which the heavier particles carry upon the surface, nes of hydrated lime which itis adapted to recover, the mill having la' discharge passage through which.v the heavier particles are `ejected with means in the passage for controlling at will, the size ofthe particles ejected through the passage. A A further object of the invention 1s the provision of a beater mill in which a. revolving 2 beater having a plurality of arms is revolved, `and over a grate, `through which the fines from heavier particles of lime. are ejected, the heavy particles bein subjected to considerable force in the mill y the arms, for the purpose of removing fines which are eventually ejected through the grate, the heavier partlcles being discharged through a passage which is more or less restricted by pivotally mounted vanes adjustable relative to each other, thereby controlling the size-of the partcles ejectedthrough the last mentioned passage. v

This inventionwll be best understood from a consideration of the following detailed description in connection with the accompanying drawings; nevertheless, it is to be understood that the invention is not confined to the disclosure being susceptible of such changes and modifications. as shall define no materialdeparture from the salient features of the invention as expressed in the appended claims.l

In the drawings Figure 1 is a verticalsection of the beater mill constructed according to the principles of my invention,

Figure 2 is a side view in elevation of the same,

yFigure 3 is a longitudinal vertical section of the beater mill.

1828. Serfal No. 270,986.

Referring more'paticularly to the drawings 10 designates a housing having sidewalls 11 and 12, and each side wall formed of sections .13 and 14. These sections are flanged and bolted to the end walls 15 and 16, and a 55 top 17. l The bottom, as shown at 18, is open.

A feeding chute 19 is formed inte al with the tp 17 and rests upon the topo the end wall 16, as shown at 20. The side wall 131s extended, as shown at 21, for closing the open side of the chute 19. A feeding pipe 22 leads into the chute 21, and is connected with any suitable source of supply of heavy particles of lime which may be cores or unburned or unhydrated lime, which are coated with tine 05 particles of hydrated lime. It is these ine particles of hydrated -lime which it is -intendedto recover in this mill, or in other words, the heavy particles which are covered with such fines are adapted to be agitatedwith considerable force'iiI this mill for causingr the -line particles to be removed from the heavy partlcles, after which the fine particles are discharged from the mill in a separate path from the heavier particles. reinforcing plate 30 is secured to the inner face of the top 17 and is adapted to receive the hea particles as they are thrown upwardly y the revolving beater arms 31. Plate 30 thus protects top 17 against undue 80 wear. A plurality of blocks 32, 33 and 34 are located in staggered relation in the upper corner of the housing 10, and receive the heavier particles as they are thrown upwardly by the arms 31 after said particles are re- B5 'ceived rfrom the chute 19t These blocks are not only supported in position respectively by the screws 3 5, 36 and 37, but said screws are adapted to adjust these blocks towards or away from the arms.

A curved inner liner 38 is located in contact with an upper portion of the end wall 15 and extends from the lower block 34 downwardly and terminates a curved grate 39, which is disposed adjacent the opening-i118, 95 and over which the free ends of the armsv move. The grate 39 consists of a plurality of V-shaped bars 40 with the portions of the bars of greater width than'eithcr adjacent the free ends-11 of the arms 31. The upper 10 j passages 42 through which the fines are dis-V charged.

The beater consists of a plurality of disks 43 having a plurality of circumferentially arranged passages to receive bolts 44, and which receive passages in the arms 31 for securing the arms to the disks. -The arms 31 are spaced a sufficient distance apart, and terminate at their inner ends a short distance from the shaft 45, and additional disks 46 which have substantially the same thickness as the arms 31 are located between the disks 43 and have passages to receive the shaft 45. The disks 43 and 46 are keyed to said shaft., as shown at 47. Bolts 48 pass through perforations Vin the disks 46 and 43 for securing the plurality of disks together as a unit.

Theaside walls 11 and 12 which includes the sections 13 and-14 are provided vwith laterally disposed flanges 5() provided at their upper ends with a removable bearing 51 for supporting the ends of the shaft 45. A casing is secured at 61 to the end wall 16 of the housing 10 and has an open end embracing an opening 62 formed in said end wall of the housing.

A. casing 60 has an internal chamber 63 forming a -discharge passage for the heavier particles which are ejected by means of the beater arms 31 from the housing 10. The

lower end of the casing 60 has a dischargev opening 64 which places the chamber 63 in communication with a discharge spout 65. The gate valve 66 is hingedly mounted at 67 in the spout and is adapted to have its lower end 68 in snug contact with the adjacent wall of the spout whereby the open endof the spout is substantially closed to the atmosphere f /A vane 70 is with the shaft 71 which projects through the section 14 of the side wall of the housing and through which projection is rigidly secured an operating arm 72 whereby the vane 70 may be manually adjusted as will be presently described. The

' free end 73 of the vane 70 projects into a chamber 63.

A vane 75 is rigid with the shaft 76 and projects through the side wall ofthe casing 60asshown at 77 and into which projection is connected an operating arm 78 whereby thevane 75 may be manually positioned. The free ends 79 of the vane extends towardthe housing 10 and is normally located adjacent the opening 62. A third vane 80 secured to a shaft 81 has its free Vend 82 sheared at an angle and in engagement with the end of the vane 75 adjacent the shaft 72.

" The operation of my device is as follows: The ejected heavier particles from a hydrating plant are normally covered with fines of hydrated material which itis desired to recover. While the heavier particles. which the chute 21, into the mill; whence they are deposited upon the revolving beater and received by the arms 31. The revolving arms throw the heavy particles against the plate 30 and also against the blocks 32, 33 and 34 somewhat violently and with sufficient force to cause the thrown heavier particles to be relieved of the fines which consists of hydrated lime, and these fines' are discharged through the passages 42 in the grate 39, after which they are collected.

The third vane 80 is adjusted by means of eXteriorly disposed operating handle so as to. cause a vcirculation of air currents through the openings between the free ends 73 and 79, respectively, of vanes 70 and 75, and then through the chamber 63. The air currents pass upwardly in chamber 63 between the upper ends of the vane 75 and casing 60 and through the opening caused by the proper positioning of the vane 80. These air currents then pass on and into the air currents caused by the revolving arms 31.

soy

Air currents traveling in this cycle lift and carry the fine material and dustthereby causing the separation and preventing the line material from passing out through the discharge openings 64.

The gate valve 66 may be positioned also and held in position by thumb screws (not shown) so as to form an opening between the free end 68 of the gate valve and the wall of the discharge spout 65, thereby allowing air currents to enter through the opening 64 passing through chamber 65 and upwardly between the rear end of vane 75 and casing 60. These currents then pass vane 80 and enter the revolving currents in the housing of the beater mill preventing the escape of fine ma,- terial or dust'through the opening between the free end 68 and the walls of the'discharge spout 65. The vane 70 is located in order to form an angle of repose fromthe outer circle of the revolving material which is caused by the rotating beater arms 31. The larger and heavier materials are travelling in the outer circle of the fast travelling material by means of centrifugal force. When the materials reach the vane 70 which projects away fromv this outer circle they are forced upwardly between vanes 70 and 75 into the chamber 63. The quantity and size of the material leaving the revolving mass is definitely controlled by positioning vanes 7 0 at a greater or less angle to the vertical.

Vanes 75 may beA positioned injorder to' I chamber 63, through the opening between the free ends of the vanes and 75.

I claim 1. A beater mill comprising a housing, a beater mounted for rotation in said houslng, a discharge chamber having an opening communicating with the housing through which particles are ejected from the housing by the .beater, a plurality' of vanes movable across the opening and adjustable relative to each other for controlling the size of the particles thrown into the discharge chamber, one of the vanes being located substantially in the housing into the discharge chamber.

A2. A beater mill comprising a housing, a

beater mounted for rotation in said housing,

a discharge chamber having an opening communicatingvwith the housing through which particles are ejected from the housing by the beater, a plurality of pivotally mounted vanes movable across the opening and adjustable relative to each of the particles thrown into the discharge chamber, the free ends of certain of the vanes being disposed adjacent each other, one vane extending from its pivot in a direction which is opposite to the direction of projection of a closely associated vane.

3. A beater mill comprising a housing, a beater mounted for rotation in said housing, a discharge chamber having an opening communicating with the housing through which particles are ejected from the rhousing by the beater, a plurality of vanes movable across the opening and adjustable relative to each other for` controlling the size of the particles thrown into the discharge'chamber, one of the vanes being located in the discharge chamber and having the free end projecting toward the interior of the housing, another vane being located in the housing and having the free end.projecting into the discharge chamber.

WILLIAM JACOB and having a free end projecting other for controlling the size' 

